After issuing his opening statement on Monday, Frazier fielded the majority of questions before being directly asked about tight end Kyle Rudolph's foot injury that took him out of the third quarter of Sunday's loss at the Dallas Cowboys.

"He has a fractured [left] foot, so that's pretty serious. We'll get a timetable here pretty soon," Frazier said. "Could be close to a month [before a return]."

Rudolph exited after a 31-yard touchdown catch when he was tackled around the ankles near the goal line.

Frazier said defensive tackles Fred Evans (knee) and Letroy Guion (shoulder) will also miss Monday's workouts, with no timetable to return. Safety Jamarca Sanford (groin) will also be held out.

Rookie cornerback Xavier Rhodes (leg) is also out, but should return on Tuesday, per Frazier. Same with cornerback Chris Cook (hip).

Right tackle Phil Loadholt (concussion) and left guard Charlie Johnson (unknown) will be held out on Monday. With the NFL's modern concussion protocol, it's unlikely Loadholt is available for Thursday night's game against the Washington Redskins.

Running back Matt Asiata will be attending the funeral of his father on Monday in Utah. It's unknown if he'll be ready to play on Thursday.

"All of those guys we're going to hold them out and see if we can get a little bit more medical clarification on what direction we'll go with them," Frazier said. "Hopefully some of them will be able to get some work in tomorrow prior to the game on Thursday."

If Rudolph returns in a month, he'll be available for the Dec. 8 matchup at the Baltimore Ravens.